Chapter 16
Performing RFoCPRI Testing
600
JD700B Series User’s Guide
key and select the option:
Auto
,
0
, and
1
.
To select the cyclic prefix, toggle the
Cyclic Prefix
soft key to
Normal
or
Extended
. See
“Appendix E – Cyclic prefix table” on page 784 for OFDM parameter details by different
bandwidth.
9
Check your measurement result displayed on the screen.
10
To clear current (C) and history (H) status of CPRI alarm on LOS and LOF and start a new
monitoring, press the
MEASURE SETUP
hot key and then the
Clear History
soft key.
11
Optional
. Go to
SAVE/LOAD > Save
, and then select the save option from the choices available
for your measurement mode. See “Using save” on page 35 for more information.
Measurement example
Figure 366 Power vs. time (frame) measurement with RFoCPRI LTE-FDD signal analyzer
Conducting constellation measurement
The Constellation is used to observe some aspects of modulation accuracy and can reveal certain fault
mechanisms such as I/Q amplitude imbalance or quadrature imbalance. It displays constellation diagram by
modulation types.
Making a measurement
Procedure
1
Press the
MEASURE
hot key to select the measurement mode.
2
Select
Signal Analyzer > LTE-FDD > Modulation Analysis > Constellation
.
3
Configure test parameters as described in the “Configuring test parameters” on page 592.
4
Press the
MEASURE SETUP
hot key, and then set the following parameters:
Measurement setups as described in the “Setting measure setup” on page 594
Rx Parameters as described in the “Configuring Rx Parameters” on page 594
5
To select the subframe number to be measured, complete the following steps:
Press the
Subframe No
soft key.
Enter a value by using the numeric keys or the rotary knob.
NOTE
For MBMS testing, this subframe number must be neither 0 nor 5 as these subframes 0
Содержание CellAdvisor JD700B Series
Страница 2: ...CellAdvisorTM JD700B Series FW3 120 User s Guide ...
Страница 105: ...Chapter 4 Using Spectrum Analyzer 104 JD700B Series User s Guide Figure 44 PIM detection for multiple carriers ...
Страница 406: ...Chapter 11 Using EV DO Signal Analyzer JD700B Series User s Guide 405 3 Pilot 4 MAC 64 5 MAC 128 ...
Страница 734: ...Chapter 18 Perfroming BBU Emulation JD700B Series User s Guide 733 Figure 441 Example of verification of link status ...
Страница 763: ...Chapter 21 Performing Fiber Inspection 762 JD700B Series User s Guide Figure 461 Fiber inspection report ...
Страница 808: ...Appendix JD700B Series User s Guide 807 JD740B series ...
Страница 811: ...Appendix 810 JD700B Series User s Guide Figure 470 Append keywords window ...